Laterally pre-compressed SiC tiles against long rod impact

摘要：

　　A combined experimental and computational study was carried out to investigate ballistic performance of laterally preload compressed SiC tile against long rod impact.A 100x100 by 20mm thick SiC tile was pushed into a 5mm thick steel frame at high temperature of 430℃ so that after cool down to room temperature, the lateral preload compressive stress was developed in the SiC tile.Depth of penetration tests of the SiC tiles with and without pre-stress were performed, where tungsten alloy long rods at a nominal velocity of 1240m/s were launched to hit the SiC tiles backed by the steel blocks.Compared with the SiC tile without any pre-stress, the pre-compressed SiC tile was found to reduce significantly the residual penetration in the backing block.Simulations were carried out using the LS-dyna hydrocode, taking account of preload stress.The simulations showed that the lateral preload compression strengthened the intact SiC tiles and dwell occurred in the early penetration stage, eroding the striking long rod efficiently.This paper is an extended abstract-the full paper appears in Defence Technology, Volume 14, Number 5.

关键词： Pre-compressed SiC tile DOP test WHA long rod

作者: B.Luo W.L.Goh Z.Chen J.Yuan

作者单位: Temasek Laboratories, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553;School of School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 Temasek Laboratories, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553

会议类型: 国际会议

会议名称: 2018 International Conference on Defence Technology (2018国际防务技术会议)

会议地点: 北京

会议语种:英文

页码: 736-737

在线出版日期: 2018-10-21（万方平台首次上网日期，不代表论文的发表时间）